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Depending on your requirements and the time available for the maintenance window, you can use any of the following patching strategies:
Note - Firmware updates are not considered patches and they cannot be applied using the patchadd command. To apply a firmware update, follow the instructions in the README file of the corresponding firmware.
Before performing any patch related operations on an Oracle Solaris system, make sure that you have applied all of the Oracle recommended patching utility patches. You can download patches for the patching utilities, patch bundles, and patch clusters from the My Oracle Support (MOS) web site.
The term ”obsolete” used in the Sun SVR4 Patch Architecture equates to the term ”superseded” in MOS.
The term ”withdrawn” used in the Sun SVR4 Patch Architecture equates to the term ”obsolete” in MOS.
In MOS, if a patch is marked "obsolete," the patch has been withdrawn from the release.
In a patch, the SUNW_OBSOLETES field present in the pkginfo file specifies the patches superseded by the patch.
Oracle Solaris Live Upgrade (LU) provides a method of upgrading a system while the system continues to operate. While your current boot environment is running, you can duplicate the boot environment and then upgrade the duplicate. The original system configuration remains fully functional and is not affected by the upgrade or installation of an archive. When you are ready, you can activate the new boot environment by rebooting the system. If a failure occurs, you can quickly revert to the original boot environment with a simple reboot. This switch eliminates the normal downtime of the test and evaluation process. For more information, refer to Oracle Solaris 10 8/11 Installation Guide: Solaris Live Upgrade and Upgrade Planning.
You can either install or upgrade to a new Oracle Solaris 10 update. An Oracle Solaris 10 Update is a full release image containing new features with all available patches pre-applied. Alternately you can apply the corresponding Oracle Solaris Update Patch Bundle. These patch bundles contain the equivalent set of patches that are included in the corresponding Oracle Solaris release image.
For example, consider the Oracle Solaris 10 5/08 Patch Bundle, and the corresponding release image Oracle Solaris 10 5/08. The Oracle Solaris 10 5/08 Patch Bundle contains the equivalent set of patches to the Oracle Solaris 10 5/08 release. The patch bundle does not include the new packages contained in the Oracle Solaris 10 5/08 release. Therefore, new features in the release that depend on new packages introduced in a release are not available in the patch bundle. However, any change to the pre-existing code is delivered in the patch bundle.
The Solaris OS Recommended Patch Cluster contains all the available Oracle Solaris OS patches. These patches include:
Fixes related to security
Fixes related to data corruption
Fixes related to system availability issues
Latest patch utility patches
Any other required patches
The recommended patch cluster bundle comes with install scripts (wrappers around the patchadd command) that perform the following functions:
Filter out false negatives from the patch utility return codes. Only those errors that require further investigation by the user are reported.
Exit as soon as an unexpected failure is encountered. This exit prevents problems that might occur by applying further patches.
Include context intelligence for patching operations. The scripts inform the user when zones need to be halted, and provide phased installation to handle patches that absolutely require an immediate reboot before further patches can be applied.
Provide better integration with Oracle Solaris Live Upgrade.
Perform space checking prior to installing each patch. If there is insufficient space, installation is halted.
The Oracle Solaris OS critical patch update (CPU) is an archived snapshot of the Oracle Solaris OS recommended patch cluster. The standard practice of Oracle is to release a CPU once every quarter.
The enterprise installation standards (EIS) set of patches is based on the recommended patch cluster for the Oracle Solaris OS. The EIS patch baseline has additional patches included by Oracle field engineers for additional products and to address issues that do not meet the criteria for inclusion in the recommended patch cluster.